document.write( "Question 1186707: Find the constant C such that the denominator will divide evenly into the numerator.\r
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document.write( "x^4-x^3-3x^2-Cx-3/x-3\r
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Algebra.Com's Answer #817666 by ikleyn(52803)![]() ![]() You can put this solution on YOUR website! . \n" ); document.write( "Find the constant C such that the denominator will divides evenly into the numerator. \n" ); document.write( "x^4-x^3-3x^2-Cx-3/x-3 \n" ); document.write( "~~~~~~~~~~~~~~~~~~~\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \r\n" ); document.write( "The linear binomial (x-3) in the denominator divides the polynomial f(x) = x^4 - x^3 - 3x^2 - Cx - 3 of the numerator evenly \r\n" ); document.write( "\r\n" ); document.write( "if and only if f(3) = 0 (the Remainder Theorem).\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "From condition f(3) = 0 find the value of C\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( " 3^4 - 3^3 - 3*3^2 - C*3 - 3 = 0.\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "It gives\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( " 3C = 3^4 - 3^3 - 3*3^2 - 3 = 81 - 27 - 3*9 - 3 = 24.\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "Hence, C = 24/3 = 8. ANSWER\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "CHECK. f(3) = 3^4 - 3^3 - 3*3^2 - 8*3 - 3 = 81 - 27 - 27 - 24 - 3 = 0.\r\n" ); document.write( "\r \n" ); document.write( "\n" ); document.write( "Solved.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "////////////\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "The response by @josgarithmetic, giving the answer \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "\\\\\\\\\\\\\\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "After my noticing, @josgarithmetic fixed his erroneous answer,\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "but his calculations (starting from the setup equation) remained INCORRECT.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "NEVER trust his solutions; ALWAYS avoid his posts, for your safety.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "This person makes errors everywhere and always.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |